<template>
  <div class="shopcar-container">
    <div class="goods-list">
      <!-- 商品列表项目区域 -->
      <div class="mui-card"  v-for="(item,i) in goodsList" :key="item.id">
        <div class="mui-card-content">
          <div class="mui-card-content-inner">
            <mt-switch v-model="$store.getters.getGoodsSelected[item.id]"
            @change="selectedChanged(item.id,$store.getters.getGoodsSelected[item.id])">
            </mt-switch>
            <img :src="item.thumb_path" />
            <div class="info">
              <h1>{{item.title}}</h1>
              <p>
                <span class="price">￥{{item.sell_price}}</span>
                <numBox :initCount="$store.getters.getGoodsCount[item.id]"></numBox>
                <!-- 问题：如何从购物车获取数量呢？ -->
                <!-- 1.我们可以先创建一个空对象，然后循环购物车中所有商品的数据，把当前循环该条商品的
                     id作为作为对象的属性名，count作为对象的属性值，这样，当把所有的商品循环一遍，就会
                     得到一个对象：{88:2,89:1,90:4} -->
                <a href="#"  @click.prevent="remove(item.id,i)">删除</a>
              </p>
            </div>
          </div>
        </div>
      </div>
    </div>
    <div class="mui-card">
      <div class="mui-card-content">
        <div class="mui-card-content-inner jiesuan">
          <div class="left">
            <p>总计（不含运费）</p>
            <p>已勾选<span class="red">{{$store.getters.getGoodsCountAndAmount.count}}</span>
            件，总价￥<span class="red">{{$store.getters.getGoodsCountAndAmount.amount}}</span></p>
          </div>
          <mt-button type="danger">去结算</mt-button>
        </div>
      </div>
    </div>
    <p> </p>
  </div>
</template>
<script>
import numBox from "../subcomponents/shopcar_numbox";
export default {
  data() {
    return {
      goodsList:[]
    };
  },
  created(){
    this.getGoodsList()
    
  },
  methods: {
    getGoodsList(){
      // 1.获取到store中所有商品的id，然后拼接出一个用逗号分隔的字符串
      var idArr=[];
      this.$store.state.car.forEach(item =>idArr.push(item.id));
      // 如果购物车中数据为空，则直接返回，不需要请求接口数据，否则会报错
      if(idArr.length<=0){
        return
      }
      // 获取购物车商品列表
      this.$http.get('api/goods/getshopcarlist/'+idArr.join(',')).then(res=>{
        if(res.body.status===0){
          // console.log(res.body.message)
          this.goodsList=res.body.message
        }
      })
    },
    remove(id,index){
      // 点击删除，把商品从store中根据传递的id删除，同时把当前组件的goodslist中对应要删除的那个商品使用index删除
      this.goodsList.splice(index,1);
      this.$store.commit('removeFromCar',id);
    },
    selectedChanged(id,val){
      // 每当点击开关，把最新的开关状态同步到store中
      // console.log(id+'------'+val)
      this.$store.commit('updateGoodsSelected',{id,selected:val})
    }
  },
  components: {
    numBox
  }
};
</script>
<style lang="scss" scoped>
.shopcar-container {
  background-color: #eee;
  overflow: hidden;
  .goods-list {
    .mui-card-content-inner {
      display: flex;
      align-items: center;
    }
    img {
      width: 60px;
      height: 60px;
    }
    h1 {
      font-size: 13px;
    }
    .info {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
      .price {
        color: red;
        font-weight: bold;
      }
    }
  }
}
.mui-card-content-inner {
  display: flex;
  align-items: center;
}
.jiesuan{
  display: flex;
  justify-content: space-between;
  align-items: center;
  .red{
    color: red;
    font-weight: bold;
    font: size 16px;
  }
}
</style>
